/*
* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
/**
* @test
* @bug 6942326
* @summary x86 code in string_indexof() could read beyond reserved heap space
*
* @run main/othervm/timeout=300 -Xmx32m -Xbatch -XX:+IgnoreUnrecognizedVMOptions
* -XX:CompileCommand=exclude,compiler.codegen.Test6942326::main
* -XX:CompileCommand=exclude,compiler.codegen.Test6942326::test_varsub_indexof
* -XX:CompileCommand=exclude,compiler.codegen.Test6942326::test_varstr_indexof
* -XX:CompileCommand=exclude,compiler.codegen.Test6942326::test_missub_indexof
* -XX:CompileCommand=exclude,compiler.codegen.Test6942326::test_consub_indexof
* -XX:CompileCommand=exclude,compiler.codegen.Test6942326::test_conmis_indexof
* -XX:CompileCommand=exclude,compiler.codegen.Test6942326::test_subcon
* compiler.codegen.Test6942326
*/
package compiler.codegen;
public class Test6942326 {
static String[] strings = new String[1024];
private static final int ITERATIONS = 100000;
public static void main(String[] args) {
long start_total = System.currentTimeMillis();
// search variable size substring in string (33 chars).
String a = " 1111111111111xx1111111111111xx11y"; // +1 to execute a.substring(1) first
String b = "1111111111111xx1111111111111xx11y";
test_varsub_indexof(a, b);
// search variable size substring in string (32 chars).
a = " 1111111111111xx1111111111111xx1y";
b = "1111111111111xx1111111111111xx1y";
test_varsub_indexof(a, b);
// search variable size substring in string (17 chars).
a = " 1111111111111xx1y";
b = "1111111111111xx1y";
test_varsub_indexof(a, b);
// search variable size substring in string (16 chars).
a = " 111111111111xx1y";
b = "111111111111xx1y";
test_varsub_indexof(a, b);
// search variable size substring in string (8 chars).
a = " 1111xx1y";
b = "1111xx1y";
test_varsub_indexof(a, b);
// search variable size substring in string (7 chars).
a = " 111xx1y";
b = "111xx1y";
test_varsub_indexof(a, b);
// search substring (17 chars) in variable size string.
a = "1111111111111xx1x";
b = " 1111111111111xx1111111111111xx1x"; // +1 to execute b.substring(1) first
test_varstr_indexof(a, b);
// search substring (16 chars) in variable size string.
a = "111111111111xx1x";
b = " 1111111111111xx1111111111111xx1x";
test_varstr_indexof(a, b);
// search substring (9 chars) in variable size string.
a = "11111xx1x";
b = " 1111111111111xx1111111111111xx1x";
test_varstr_indexof(a, b);
// search substring (8 chars) in variable size string.
a = "1111xx1x";
b = " 1111111111111xx1111111111111xx1x";
test_varstr_indexof(a, b);
// search substring (4 chars) in variable size string.
a = "xx1x";
b = " 1111111111111xx1111111111111xx1x";
test_varstr_indexof(a, b);
// search substring (3 chars) in variable size string.
a = "x1x";
b = " 1111111111111xx1111111111111xx1x";
test_varstr_indexof(a, b);
// search substring (2 chars) in variable size string.
a = "1y";
b = " 1111111111111xx1111111111111xx1y";
test_varstr_indexof(a, b);
// search non matching variable size substring in string (33 chars).
a = " 1111111111111xx1111111111111xx11z"; // +1 to execute a.substring(1) first
b = "1111111111111xx1111111111111xx11y";
test_missub_indexof(a, b);
// search non matching variable size substring in string (32 chars).
a = " 1111111111111xx1111111111111xx1z";
b = "1111111111111xx1111111111111xx1y";
test_missub_indexof(a, b);
// search non matching variable size substring in string (17 chars).
a = " 1111111111111xx1z";
b = "1111111111111xx1y";
test_missub_indexof(a, b);
// search non matching variable size substring in string (16 chars).
a = " 111111111111xx1z";
b = "111111111111xx1y";
test_missub_indexof(a, b);
// search non matching variable size substring in string (8 chars).
a = " 1111xx1z";
b = "1111xx1y";
test_missub_indexof(a, b);
// search non matching variable size substring in string (7 chars).
a = " 111xx1z";
b = "111xx1y";
test_missub_indexof(a, b);
// Testing constant substring search in variable size string.
// search constant substring (17 chars).
b = " 1111111111111xx1111111111111xx1x"; // +1 to execute b.substring(1) first
TestCon tc = new TestCon17();
test_consub_indexof(tc, b);
// search constant substring (16 chars).
b = " 1111111111111xx1111111111111xx1x";
tc = new TestCon16();
test_consub_indexof(tc, b);
// search constant substring (9 chars).
b = " 1111111111111xx1111111111111xx1x";
tc = new TestCon9();
test_consub_indexof(tc, b);
// search constant substring (8 chars).
b = " 1111111111111xx1111111111111xx1x";
tc = new TestCon8();
test_consub_indexof(tc, b);
// search constant substring (4 chars).
b = " 1111111111111xx1111111111111xx1x";
tc = new TestCon4();
test_consub_indexof(tc, b);
// search constant substring (3 chars).
b = " 1111111111111xx1111111111111xx1x";
tc = new TestCon3();
test_consub_indexof(tc, b);
// search constant substring (2 chars).
b = " 1111111111111xx1111111111111xx1y";
tc = new TestCon2();
test_consub_indexof(tc, b);
// search constant substring (1 chars).
b = " 1111111111111xx1111111111111xx1y";
tc = new TestCon1();
test_consub_indexof(tc, b);
// search non matching constant substring (17 chars).
b = " 1111111111111xx1111111111111xx1z"; // +1 to execute b.substring(1) first
tc = new TestCon17();
test_conmis_indexof(tc, b);
// search non matching constant substring (16 chars).
b = " 1111111111111xx1111111111111xx1z";
tc = new TestCon16();
test_conmis_indexof(tc, b);
// search non matching constant substring (9 chars).
b = " 1111111111111xx1111111111111xx1z";
tc = new TestCon9();
test_conmis_indexof(tc, b);
// search non matching constant substring (8 chars).
b = " 1111111111111xx1111111111111xx1z";
tc = new TestCon8();
test_conmis_indexof(tc, b);
// search non matching constant substring (4 chars).
b = " 1111111111111xx1111111111111xx1z";
tc = new TestCon4();
test_conmis_indexof(tc, b);
// search non matching constant substring (3 chars).
b = " 1111111111111xx1111111111111xx1z";
tc = new TestCon3();
test_conmis_indexof(tc, b);
// search non matching constant substring (2 chars).
b = " 1111111111111xx1111111111111xx1z";
tc = new TestCon2();
test_conmis_indexof(tc, b);
// search non matching constant substring (1 chars).
b = " 1111111111111xx1111111111111xx1z";
tc = new TestCon1();
test_conmis_indexof(tc, b);
long end_total = System.currentTimeMillis();
System.out.println("End run time: " + (end_total - start_total));
}
public static long test_init(String a, String b) {
for (int i = 0; i < 512; i++) {
strings[i * 2] = new String(b.toCharArray());
strings[i * 2 + 1] = new String(a.toCharArray());
}
System.out.print(a.length() + " " + b.length() + " ");
return System.currentTimeMillis();
}
public static void test_end(String a, String b, int v, int expected, long start) {
long end = System.currentTimeMillis();
int res = (v/ITERATIONS);
System.out.print(" " + res);
System.out.println(" time:" + (end - start));
if (res != expected) {
System.out.println("wrong indexOf result: " + res + ", expected " + expected);
System.out.println("\"" + b + "\".indexOf(\"" + a + "\")");
System.exit(97);
}
}
public static int test_subvar() {
int s = 0;
int v = 0;
for (int i = 0; i < ITERATIONS; i++) {
v += strings[s].indexOf(strings[s + 1]);
s += 2;
if (s >= strings.length) s = 0;
}
return v;
}
public static void test_varsub_indexof(String a, String b) {
System.out.println("Start search variable size substring in string (" + b.length() + " chars)");
long start_it = System.currentTimeMillis();
int limit = 1; // last a.length() == 1
while (a.length() > limit) {
a = a.substring(1);
long start = test_init(a, b);
int v = test_subvar();
test_end(a, b, v, (b.length() - a.length()), start);
}
long end_it = System.currentTimeMillis();
System.out.println("End search variable size substring in string (" + b.length() + " chars), time: " + (end_it - start_it));
}
public static void test_varstr_indexof(String a, String b) {
System.out.println("Start search substring (" + a.length() + " chars) in variable size string");
long start_it = System.currentTimeMillis();
int limit = a.length();
while (b.length() > limit) {
b = b.substring(1);
long start = test_init(a, b);
int v = test_subvar();
test_end(a, b, v, (b.length() - a.length()), start);
}
long end_it = System.currentTimeMillis();
System.out.println("End search substring (" + a.length() + " chars) in variable size string, time: " + (end_it - start_it));
}
public static void test_missub_indexof(String a, String b) {
System.out.println("Start search non matching variable size substring in string (" + b.length() + " chars)");
long start_it = System.currentTimeMillis();
int limit = 1; // last a.length() == 1
while (a.length() > limit) {
a = a.substring(1);
long start = test_init(a, b);
int v = test_subvar();
test_end(a, b, v, (-1), start);
}
long end_it = System.currentTimeMillis();
System.out.println("End search non matching variable size substring in string (" + b.length() + " chars), time: " + (end_it - start_it));
}
public static void test_consub_indexof(TestCon tc, String b) {
System.out.println("Start search constant substring (" + tc.constr().length() + " chars)");
long start_it = System.currentTimeMillis();
int limit = tc.constr().length();
while (b.length() > limit) {
b = b.substring(1);
long start = test_init(tc.constr(), b);
int v = test_subcon(tc);
test_end(tc.constr(), b, v, (b.length() - tc.constr().length()), start);
}
long end_it = System.currentTimeMillis();
System.out.println("End search constant substring (" + tc.constr().length() + " chars), time: " + (end_it - start_it));
}
public static void test_conmis_indexof(TestCon tc, String b) {
System.out.println("Start search non matching constant substring (" + tc.constr().length() + " chars)");
long start_it = System.currentTimeMillis();
int limit = tc.constr().length();
while (b.length() > limit) {
b = b.substring(1);
long start = test_init(tc.constr(), b);
int v = test_subcon(tc);
test_end(tc.constr(), b, v, (-1), start);
}
long end_it = System.currentTimeMillis();
System.out.println("End search non matching constant substring (" + tc.constr().length() + " chars), time: " + (end_it - start_it));
}
public static int test_subcon(TestCon tc) {
int s = 0;
int v = 0;
for (int i = 0; i < ITERATIONS; i++) {
v += tc.indexOf(strings[s]);
s += 2;
if (s >= strings.length) s = 0;
}
return v;
}
private interface TestCon {
public String constr();
public int indexOf(String str);
}
// search constant substring (17 chars).
private final static class TestCon17 implements TestCon {
private static final String constr = "1111111111111xx1x";
public String constr() { return constr; }
public int indexOf(String str) { return str.indexOf(constr); }
}
// search constant substring (16 chars).
private final static class TestCon16 implements TestCon {
private static final String constr = "111111111111xx1x";
public String constr() { return constr; }
public int indexOf(String str) { return str.indexOf(constr); }
}
// search constant substring (9 chars).
private final static class TestCon9 implements TestCon {
private static final String constr = "11111xx1x";
public String constr() { return constr; }
public int indexOf(String str) { return str.indexOf(constr); }
}
// search constant substring (8 chars).
private final static class TestCon8 implements TestCon {
private static final String constr = "1111xx1x";
public String constr() { return constr; }
public int indexOf(String str) { return str.indexOf(constr); }
}
// search constant substring (4 chars).
private final static class TestCon4 implements TestCon {
private static final String constr = "xx1x";
public String constr() { return constr; }
public int indexOf(String str) { return str.indexOf(constr); }
}
// search constant substring (3 chars).
private final static class TestCon3 implements TestCon {
private static final String constr = "x1x";
public String constr() { return constr; }
public int indexOf(String str) { return str.indexOf(constr); }
}
// search constant substring (2 chars).
private final static class TestCon2 implements TestCon {
private static final String constr = "1y";
public String constr() { return constr; }
public int indexOf(String str) { return str.indexOf(constr); }
}
// search constant substring (1 chars).
private final static class TestCon1 implements TestCon {
private static final String constr = "y";
public String constr() { return constr; }
public int indexOf(String str) { return str.indexOf(constr); }
}
}